81899720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{367}}^1\times {\mathrm{797}}^1$

素因数の和:1182

約数の個数: 64

約数和(自身を含む): 211438080

約数和(自身を除く): 129538360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 367, 734, 797, 1468, 1594, 1835, 2569, 2936, 3188, 3670, 3985, 5138, 5579, 6376, 7340, 7970, 10276, 11158, 12845, 14680, 15940, 20552, 22316, 25690, 27895, 31880, 44632, 51380, 55790, 102760, 111580, 223160, 292499, 584998, 1169996, 1462495, 2047493, 2339992, 2924990, 4094986, 5849980, 8189972, 10237465, 11699960, 16379944, 20474930, 40949860, 81899720]

約数ペア:

[(1, 81899720), (2, 40949860), (4, 20474930), (5, 16379944), (7, 11699960), (8, 10237465), (10, 8189972), (14, 5849980), (20, 4094986), (28, 2924990), (35, 2339992), (40, 2047493), (56, 1462495), (70, 1169996), (140, 584998), (280, 292499), (367, 223160), (734, 111580), (797, 102760), (1468, 55790), (1594, 51380), (1835, 44632), (2569, 31880), (2936, 27895), (3188, 25690), (3670, 22316), (3985, 20552), (5138, 15940), (5579, 14680), (6376, 12845), (7340, 11158), (7970, 10276)]